Grinding-mill



(No Model.) i Y 2 Sheets-fSheet 1. D. HESS.

GRINDING MILL.

No. 294,735. Patented Mm. 4, 1884.

WITNESSES N. PETERS. memmmwer. Mlm-51m. n. c.

(No Model.) 2 sheets-sheet -2.

D. HESS.

GRINDING MILL. No. 294,735. Patmeed Mar. 4, 1884.

Rev/MNM N. FLTERS. Phuwmhogmphw. wmhmkmn. n.4:A

@Niven STATES.

ArnNr Prien.

DANIEL I-IESS, OF ATLANTA, GEORGIA.

SPECIFICIATION` forming part of Letters Patent No. 294,735, dated March4, 1884.

l Appiiminn mea April 2o, 1883. (No model.;

.To all whom it may concern;

Be it known that I, DANIEL Huss, a' citizen of the United States,residing at Atlanta, in the county of Fulton and State'of G eorgia, haveinvented certain new and useful Improvements in Grindi1ig-l\1Iil ls, ofwhich the following is a specification, reference being had therein tothe accompanying drawings.

My invention has relation to vertical-disk grinding-mills; and itsobject is to provide a mill for grinding all kinds of grain and theusual feed for stock th at will besimplean d cheap in construction,effective in operation, and possess littleliability to derangement ofparts, and that will not allow the burrs to get out of true or grindunevenly; and to these ends the novelty consists in the constructionofthe saine, as will be hereinafter more fully described, andparticularly pointed out in the cla-im.

In the accompanying drawings the saine letters of reference indicate thesame or like parts of the invention.

Figure 1 is a sectional side elevation of my improved mill. Fig. 2 is adetail edge view, partly in section, of the devices for vibrating thefeed-pan; and Fig. 3 is a side elevation of the saine. V

A is the bed-plate, which is provided with brackets a c. In the bracketc is abearing, b, for the shaft B,which, at its outer end, is providedwith 'a driving-pulley, I/,while the bracket a is provided withalongitudinal groove, b', in which is mounted the tongued box @,whichforms a bearing for that end of the shaft B. This end of the shaft hasrecesses c, into which fit collars c inthe box C, so that as the'boxislongitudinally Aadjusted it will carry the shaft with it.`

D is a screw-rod rigidly secured to the end d of the box C, and itextends through the arm.

d of the bracket a', and the said screw-rod is provided with two adjusting-nuts, c c', located one on each side of the arm d. It will thusbe seen that by this construction of the parts the box Gand shaft B mayreadily be adj usted longitudinally, and when this is done they maybelocked in position by screwing the nuts hard against the arin d.

Eis a thrust bearing block, against which the end of the shaft ab'utsand revolves, andv when worn may be replaced without changing the box C.

F is the feed-box, which is provided with a small opening, j`,'throughwhich the shaft B passes, and with alarger one, f, through which thegrain is fed by the externally-screw-thread ed collar K into the mill.This feed-box is suitablymountedupon the bed-plate, andto one sidethereof is secured the stationary burr G.

The conical crushing-burr H, which operates in connection with asimilarly-shaped shell,H-, inathe burr G, is secured tothe shaft B bysetscrews 71, and the grinding-disk I is provided with a taperingsupporting-shell, J, formed integral therewith, and extending rearward,de-

. creasing in size until its endi encompasses the shaft B, where it issecured by the set-screw i.

l is a collar rigidly secured by a set-scre.v, 7L', tothe conical burrH, and its -diameter is less than the central opening in thegrindingdisk I, so that while it ordinarily keeps the disk I in acentral position with reference to the shaft B, at the saine time thereis suflicient play between the collar I and disk I to allow the latterto come into intimate or true relation to the face of the burr G. Itwill thus be seen that by this construction the face of the grind'-ing-disk I will adjust itself to the face of the stationary burr G, andconsequently that their grinding-surfaces will bear evenly all aroundand produce a uniform meal.

K is a collar secured upon the shaft B in the feed-box, and itsperiphery is provided with a coarse serew-thread, c,which feeds thegrain to the burrs. The grain from the feed-boXis'earried to the conicalcrushing-burr H and shell II', and thence between the stationary grinderG and -rotating disk I,whence itpasses into the chamber L and into themeal-box through the opening Z. By adjusting the box' C'by means of thescrew-rod D and nuts c c', the shaft B is adjusted, and as the conicalgrinder Hand disk I are secured to it, they are adjusted with referenceto the burr G and shell H.

M M is a removable boxfraine .secured to the-bed-plate, and the upperend of this frame has the usual hopper, m, and slide N, which regulatesthe amount of grain passing through the opening n. This frame isprovided with slots m mjwhich allow it'to set down over the shaft B andrest upon the bedplate A, and it is secured thereto by hooks andstaples. (Not shown.)

O is ashaking-pan,into which the grain drops IOO from the hopper ym, andthe degree of its inclination may be adjusted by turning the stud n,around which passes the heit-l), attached to the rod j), Seenredto thedischarge end oisaid pan.

l is a lever pivoted to theinsideof the frame M at a', its lower end, r,resting hy gravity against the eccentric S on the shalt ,whi1eiis upperend comes in Contact with the rod p on the pan. Theeeeentrie, as itrotates, oscillates the lever, and it in turn imparts a Yibratory motionto the pamwhieh lwhakes the grain into `the feed-hex l".

I make no claim to the devices herein Shown and described other ihanaSspecliealiy claimed, but prefer to use the features shown and described,hut not claimed, in connection with the parts in which my inventionresides.

That claim is- The feed-box l?, the stationary burr G, and 2o conicalcrushing-shell ll', in combination with the driving-shalt l, the conicalburr ll, collar lf, grinding-disk l, provided with thetaperingsupporting-shell .Land set-screw `,as set forth.

ln testimony whereof I at'iix my Signatn re in 25

